CN114754734A - Gas pipeline subsides and detects adjusting device - Google Patents
Gas pipeline subsides and detects adjusting device Download PDFInfo
- Publication number
- CN114754734A CN114754734A CN202210435814.2A CN202210435814A CN114754734A CN 114754734 A CN114754734 A CN 114754734A CN 202210435814 A CN202210435814 A CN 202210435814A CN 114754734 A CN114754734 A CN 114754734A
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- fixedly connected
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- gas pipeline
- clamping
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- 238000001514 detection method Methods 0.000 claims abstract description 85
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 45
- 238000010586 diagram Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Sampling And Sample Adjustment (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention is suitable for the relevant technical field of gas pipeline detection, and provides a gas pipeline settlement detection adjusting device, which comprises a supporting bottom plate and also comprises: the first supporting plate is connected with the supporting bottom plate through a detection assembly, wherein the detection assembly comprises a depth detection unit and an angle detection unit; the pipeline clamping unit is arranged above the first supporting plate, and can stably clamp gas pipelines with different diameters through the arrangement of the pipeline clamping unit; the first connecting rod rotates to drive the second connecting rod to rotate so as to drive the second pointer and the second scale marks arranged on the first connecting plate to detect the rotating angle of the gas pipeline.
Description
Technical Field
The invention belongs to the technical field related to gas pipeline detection, and particularly relates to a gas pipeline settlement detection adjusting device.
Background
The natural gas pipeline is a pipeline for conveying natural gas (including associated gas produced in an oil field) from a mining area or a processing plant to an urban gas distribution center or an industrial enterprise user, and is also called a gas transmission pipeline.
Present gas pipeline subsides detection device when detecting the subside condition of gas pipeline, there are some weak points, one of them is gas pipeline's diameter can be different, present device can not all carry out stable centre gripping fixed to the gas pipeline of different diameters, another one, present subsides detection device generally can only obtain the data on the vertical direction and gas pipeline probably produces the change of angle when subsiding, present detection device does not possess the ability that detects its turned angle, based on this, the gas pipeline who can solve above-mentioned problem subsides detection adjusting device now.
Disclosure of Invention
The invention provides a gas pipeline settlement detection and adjustment device, and aims to solve the problems that the diameters of gas pipelines are different, the existing device cannot stably clamp and fix the gas pipelines with different diameters, and the existing settlement detection device can only obtain data in the vertical direction generally, but the angle change may occur when the gas pipelines are settled, and the existing detection device does not have the capability of detecting the rotation angle.
The invention is realized in this way, a gas pipeline subsidence detection adjusting device, the device includes the supporting baseplate, also includes: the detection assembly comprises a depth detection unit and an angle detection unit, and the depth detection unit and the angle detection unit are respectively used for detecting a vertical direction numerical value and an angle change numerical value generated when the pipeline main body is settled; the pipeline centre gripping unit, the pipeline centre gripping unit sets up in the top of first backup pad, and the gas pipeline homoenergetic to different diameters through setting up of pipeline centre gripping unit carries out stable centre gripping.
Preferably, the depth detection unit includes: the end part of the depth detection outer rod is rotationally connected with the first supporting plate through a first rotating shaft; the depth detection device comprises a depth detection inner rod, wherein the end part of the depth detection inner rod is rotatably connected with a supporting base plate through a first rotating shaft, an outer depth detection rod sleeve is arranged on the outer side of the depth detection inner rod, a first pointer is fixedly connected to the side surface of the depth detection inner rod, an observation panel is arranged on the outer depth detection rod, and a first scale mark is arranged on the observation panel.
Preferably, the angle detection unit includes: the first connecting rod is fixedly connected with a first supporting plate, two symmetrically arranged second rotating shafts are fixedly connected to the side surface of the first connecting rod, the end parts of the two second rotating shafts are rotatably connected to the first connecting plate, a second connecting rod is fixedly connected to the side surface of the first connecting rod, an angle measuring groove for the second connecting rod to penetrate through is formed in the first connecting plate on the right side, a second pointer is fixedly connected to the second connecting rod, and a second scale mark matched with the second pointer is formed in the first connecting plate on the right side; the connecting structure comprises first connecting blocks, wherein the first connecting blocks are symmetrically arranged and are fixedly connected with a supporting bottom plate, the first connecting blocks are correspondingly arranged with the first connecting plates respectively, the lower ends of the first connecting plates are fixedly connected with second connecting plates, first connecting grooves are formed in the first connecting blocks, and the side faces of the second connecting plates are connected with the first connecting grooves through first springs for providing elasticity.
Preferably, be provided with a plurality of air springs between supporting baseplate and the first backup pad, it is a plurality of both ends of air spring are connected with first backup pad and supporting baseplate rotation through the third pivot respectively.
Preferably, the pipe gripping unit includes: two centre gripping semi-rings that the symmetry set up, two the centre gripping semi-ring all is connected with the connecting frame through the linkage unit, two all the array is provided with a plurality of clamping parts on the centre gripping semi-ring.
Preferably, the clamping portion includes: the middle of the clamping block is of a hollow structure, the side surface of the clamping block is fixedly connected with a plurality of limiting strips, and the limiting strips penetrate through the clamping semi-ring; the clamping device comprises a first threaded rod, wherein the first threaded rod is in threaded connection with the clamping semi-ring, a first knob is fixedly connected with one end of the first threaded rod, a clamping block is passed through the other end of the first threaded rod, and two first limiting plates are fixedly connected with the side surface of the first threaded rod and are used for clamping the clamping block in the middle.
Preferably, the connection unit includes: the adjusting plate is fixedly connected to the side face of the clamping semi-ring, a connecting threaded pin penetrating through the adjusting plate is in threaded connection with the adjusting plate, a second limiting plate is fixedly connected to the end portion of the connecting frame, and the connecting threaded pin is in threaded connection with the connecting frame.
Preferably, the lower end of the connection frame is connected with the first support plate through a height adjustment unit.
Preferably, the height adjusting unit includes: the outer sleeve is fixedly connected with the connecting frame; the second threaded rod is fixedly connected with the first supporting plate, the outer sleeve is sleeved on the outer side of the second threaded rod, and a second knob is connected to the outer side of the second threaded rod in a threaded mode; the end parts of the connecting outer rods are fixedly connected to the connecting frame; the connecting rod comprises a plurality of connecting inner rods, the end parts of the connecting inner rods are fixedly connected to a first supporting plate, the connecting outer rod sleeves the outer sides of the connecting inner rods, second connecting grooves are formed in the connecting outer rods, third connecting plates are fixedly connected to the end parts of the connecting inner rods, and the side faces of the third connecting plates are connected with the second connecting grooves through second springs used for providing elasticity.
Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:
1. through the arrangement of the depth detection unit and the angle detection unit, the inner depth detection rod moves in the outer depth detection rod along with the settlement of the gas pipeline, and the first pointer and the first scale line are driven to detect the settlement depth; the first connecting rod rotates to drive the second connecting rod to rotate so as to drive the second pointer and the second scale marks arranged on the first connecting plate to detect the rotating angle of the gas pipeline.
2. Through the setting of pipeline centre gripping unit, after the centre gripping semicircle carried out preliminary centre gripping to gas pipeline, rotated first threaded rod, removed the grip block on radial direction, it is fixed to carry out the centre gripping to gas pipeline to can carry out the centre gripping to the gas pipeline of different diameters and fix, when needing to take off the device, will connect the screw thread round pin and take off, remove the centre gripping semi-ring to both sides, take off the device can.
Drawings
FIG. 1 is a schematic view of the overall structure of a gas pipeline settlement detection and adjustment device provided by the invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic structural diagram of a connection between an outer connecting rod and an inner connecting rod in the gas pipeline settlement detection and adjustment device provided by the invention;
FIG. 4 is a first schematic structural diagram of an angle detection unit in the gas pipeline settlement detection and adjustment device provided by the invention;
FIG. 5 is a schematic structural diagram of an angle detection unit in the gas pipeline settlement detection and adjustment device provided by the invention;
FIG. 6 is a schematic structural diagram of a depth detection unit in the gas pipeline settlement detection and adjustment device provided by the invention;
fig. 7 is a schematic structural diagram of a first threaded rod in the gas pipeline settlement detection and adjustment device provided by the invention.
Notations for reference numerals: 1. a support base plate; 2. a first support plate; 301. a depth detection outer rod; 302. a first rotating shaft; 303. an inner rod for depth detection; 304. a first pointer; 305. a viewing panel; 306. a first scale mark; 401. a first connecting rod; 402. a second rotating shaft; 403. a first connecting plate; 404. a second connecting rod; 405. an angle measuring groove; 406. a second pointer; 407. a second scale mark; 408. a first connection block; 409. a second connecting plate; 410. a first connecting groove; 411. a first spring; 5. a gas spring; 6. a third rotating shaft; 7. clamping the half rings; 8. a connecting frame; 901. a clamping block; 902. a limiting strip; 903. a first threaded rod; 904. a first knob; 905. a first limit plate; 101. an adjusting plate; 102. connecting a threaded pin; 103. a second limiting plate; 111. an outer sleeve; 112. a second threaded rod; 113. a second knob; 114. connecting the outer rod; 115. connecting the inner rod; 116. a second connecting groove; 117. a third connecting plate; 118. a second spring; 19. a pipe body.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Example 1
The embodiment of the invention provides a gas pipeline settlement detection and adjustment device, which comprises a support base plate 1 and further comprises the following components: the first supporting plate 2 is connected with the supporting base plate 1 through a detection assembly, the detection assembly comprises a depth detection unit and an angle detection unit, and the vertical direction numerical value and the angle change numerical value generated when the pipeline main body 19 is settled are detected through the depth detection unit and the angle detection unit; the pipeline centre gripping unit, the pipeline centre gripping unit sets up in the top of first backup pad 2, and the gas pipeline homoenergetic to different diameters through setting up of pipeline centre gripping unit carries out stable centre gripping.
When the device is used actually, the gas pipelines with different diameters are stably clamped through the pipeline clamping unit, and the angle and the depth are detected through the depth detection unit and the angle detection unit.
Example 2
With reference to fig. 6, in this embodiment, on the basis of embodiment 1, the depth detection unit includes: the end part of the depth detection outer rod 301 is rotationally connected with the first supporting plate 2 through a first rotating shaft 302; the end of the inner depth detection rod 303 is rotatably connected with the support bottom plate 1 through a first rotating shaft 302, the outer depth detection rod 301 is sleeved outside the inner depth detection rod 303, a first pointer 304 is fixedly connected to the side surface of the inner depth detection rod 303, an observation panel 305 is arranged on the outer depth detection rod 301, and a first scale mark 306 is arranged on the observation panel 305.
When the depth detection unit is actually used, the inner depth detection rod 303 moves in the outer depth detection rod 301 along with the settlement of the gas pipeline, and drives the first pointer 304 and the first scale mark 306 to detect the settled depth.
Example 3
With reference to fig. 4 and 5, in this embodiment, on the basis of embodiment 2, the angle detection unit includes: the first connecting rod 401 is fixedly connected with the first supporting plate 2, two second rotating shafts 402 which are symmetrically arranged are fixedly connected to the side surface of the first connecting rod 401, the end portions of the two second rotating shafts 402 are rotatably connected to the first connecting plate 403, a second connecting rod 404 is fixedly connected to the side surface of the first connecting rod 401, an angle measuring groove 405 through which the second connecting rod 404 passes is formed in the first connecting plate 403 on the right side, a second pointer 406 is fixedly connected to the second connecting rod 404, and a second scale mark 407 matched with the second pointer 406 is formed in the first connecting plate 403 on the right side; first connecting block 408, two first connecting blocks 408 symmetry set up and all with supporting baseplate 1 fixed connection, two first connecting blocks 408 correspond the setting with two first connecting plates 403 respectively, the lower extreme fixedly connected with second connecting plate 409 of first connecting plate 403, are provided with first connecting slot 410 in the first connecting block 408, and the side of second connecting plate 409 is connected with first connecting slot 410 through the first spring 411 that is used for providing elasticity.
When the angle detection unit is actually used, the first connecting rod 401 rotates to drive the second connecting rod 404 to rotate and then drive the second pointer 406 and the second scale mark 407 arranged on the first connecting plate 403 to detect the rotating angle of the gas pipeline.
Example 4
Referring to fig. 2 and 7, in this embodiment, on the basis of embodiment 3, a plurality of gas springs 5 are disposed between the supporting base plate 1 and the first supporting plate 2, and two ends of the plurality of gas springs 5 are respectively rotatably connected to the first supporting plate 2 and the supporting base plate 1 through the third rotating shaft 6.
The pipe clamp unit includes: two centre gripping semi-rings 7 that the symmetry set up, two centre gripping semi-rings 7 all are connected with the connecting frame 8 through the linkage unit, and equal array is provided with a plurality of clamping parts on two centre gripping semi-rings 7.
The clamping part includes: the middle of the clamping block 901 is of a hollow structure, the side surface of the clamping block 901 is fixedly connected with a plurality of limiting strips 902, and the limiting strips 902 all penetrate through the clamping half ring 7; first threaded rod 903, first threaded rod 903 threaded connection are on centre gripping semi-ring 7, the first knob 904 of one end fixedly connected with of first threaded rod 903, grip block 901 is passed to the other one end of first threaded rod 903, two first limiting plates 905 of the side fixedly connected with of first threaded rod 903, two first limiting plates 905 with grip block 901 centre gripping in the middle.
The connection unit includes: and the adjusting plate 101 is fixedly connected to the side surface of the clamping half ring 7, a connecting threaded pin 102 penetrating through the adjusting plate 101 is in threaded connection with the adjusting plate 101, a second limiting plate 103 is fixedly connected to the end part of the connecting frame 8, and the connecting threaded pin 102 is in threaded connection with the connecting frame 8.
When the device is actually used, after the clamping semi-ring 7 preliminarily clamps the gas pipeline, the first threaded rod 903 is rotated, the clamping block 901 is moved in the radial direction to clamp and fix the gas pipeline, the gas pipeline with different diameters can be clamped and fixed, when the device needs to be taken down, the connecting threaded pin 102 is taken down, the clamping semi-ring 7 is moved to two sides, and the device is taken down.
Example 5
Referring to fig. 3, in this embodiment, on the basis of embodiment 4, the lower end of the connecting frame 8 is connected to the first supporting plate 2 through the height adjusting unit.
The height adjusting unit includes: the outer sleeve 111, the outer sleeve 111 is fixedly connected with the connecting frame 8; the second threaded rod 112 is fixedly connected with the first supporting plate 2, the outer sleeve 111 is sleeved on the outer side of the second threaded rod 112, and the outer side of the second threaded rod 112 is in threaded connection with a second knob 113; a plurality of connecting outer rods 114, the ends of the connecting outer rods 114 being fixedly connected to the connecting frame 8; the inner connecting rods 115 are fixedly connected to the end portions of the inner connecting rods 115 on the first supporting plate 2, the outer connecting rods 114 are sleeved outside the inner connecting rods 115, second connecting grooves 116 are formed in the outer connecting rods 114, third connecting plates 117 are fixedly connected to the end portions of the inner connecting rods 115, and the side faces of the third connecting plates 117 are connected with the second connecting grooves 116 through second springs 118 used for providing elastic force.
When the height adjusting unit is actually used, the second knob 113 is rotated to drive the outer sleeve 111 to move up and down in the direction of the second threaded rod 112, and then the height is adjusted.
In summary, the working principle of the invention is as follows: the inner depth detection rod 303 moves in the outer depth detection rod 301 along with the settlement of the gas pipeline, and drives the first pointer 304 and the first scale mark 306 to detect the settlement depth; the first connecting rod 401 rotates to drive the second connecting rod 404 to rotate so as to drive the second pointer 406 and a second scale mark 407 arranged on the first connecting plate 403 to detect the rotation angle of the gas pipeline; after the centre gripping semi-ring 7 carries out preliminary centre gripping to the gas pipeline, rotates first threaded rod 903, removes grip block 901 on radial direction, and it is fixed to carry out the centre gripping to the gas pipeline to can carry out the centre gripping to the gas pipeline of different diameters and fix, when needing to take off the device, will connect threaded pin 102 and take off, to both sides removal centre gripping semi-ring 7, take off the device can.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a gas pipeline subsides and detects adjusting device, the device includes supporting baseplate, its characterized in that still includes:
the pipeline main body sedimentation detection device comprises a first supporting plate and a supporting bottom plate, wherein the first supporting plate is connected with the supporting bottom plate through a detection assembly, the detection assembly comprises a depth detection unit and an angle detection unit, and the depth detection unit and the angle detection unit are arranged to respectively detect a vertical direction numerical value and an angle change numerical value generated when the pipeline main body is settled;
the pipeline centre gripping unit, the pipeline centre gripping unit sets up in the top of first backup pad, and the gas pipeline homoenergetic to different diameters through setting up of pipeline centre gripping unit carries out stable centre gripping.
2. The gas pipeline settlement detecting and adjusting device as claimed in claim 1, wherein the depth detecting unit comprises:
the end part of the depth detection outer rod is rotatably connected with the first supporting plate through a first rotating shaft;
the depth detection device comprises a depth detection inner rod, wherein the end part of the depth detection inner rod is rotatably connected with a supporting base plate through a first rotating shaft, an outer depth detection rod sleeve is arranged on the outer side of the depth detection inner rod, a first pointer is fixedly connected to the side surface of the depth detection inner rod, an observation panel is arranged on the outer depth detection rod, and a first scale mark is arranged on the observation panel.
3. The gas pipeline settlement detecting and adjusting device as claimed in claim 1, wherein the angle detecting unit comprises:
the first connecting rod is fixedly connected with a first supporting plate, two symmetrically arranged second rotating shafts are fixedly connected to the side surface of the first connecting rod, the end parts of the two second rotating shafts are rotatably connected to the first connecting plate, a second connecting rod is fixedly connected to the side surface of the first connecting rod, an angle measuring groove for the second connecting rod to penetrate through is formed in the first connecting plate on the right side, a second pointer is fixedly connected to the second connecting rod, and a second scale mark matched with the second pointer is formed in the first connecting plate on the right side;
the connecting device comprises first connecting blocks, wherein the two first connecting blocks are symmetrically arranged and fixedly connected with a supporting bottom plate, the two first connecting blocks are respectively arranged corresponding to the two first connecting plates, the lower ends of the first connecting plates are fixedly connected with second connecting plates, first connecting grooves are formed in the first connecting blocks, and the side faces of the second connecting plates are connected with the first connecting grooves through first springs for providing elasticity.
4. The gas pipe settling detection and adjustment device as claimed in claim 1, wherein a plurality of gas springs are disposed between the support base plate and the first support plate, and both ends of the plurality of gas springs are rotatably connected to the first support plate and the support base plate through third rotating shafts, respectively.
5. The gas pipeline settlement detecting and adjusting device of claim 1, wherein the pipeline clamping unit comprises:
two centre gripping semi-rings that the symmetry set up, two the centre gripping semi-ring all is connected with the connecting frame through the linkage unit, two all the array is provided with a plurality of clamping parts on the centre gripping semi-ring.
6. The gas pipeline settlement detecting and adjusting device of claim 5, wherein the clamping portion comprises:
the middle of the clamping block is of a hollow structure, the side surface of the clamping block is fixedly connected with a plurality of limiting strips, and the limiting strips penetrate through the clamping semi-ring;
the clamping device comprises a first threaded rod, wherein the first threaded rod is in threaded connection with a clamping semi-ring, a first knob is fixedly connected with one end of the first threaded rod, a clamping block is passed through the other end of the first threaded rod, and two first limiting plates are fixedly connected with the side surface of the first threaded rod and are used for clamping the clamping block in the middle.
7. The gas pipeline settlement detecting and adjusting device of claim 6, wherein the connecting unit comprises:
the adjusting plate is fixedly connected to the side face of the clamping semi-ring, a connecting threaded pin penetrating through the adjusting plate is in threaded connection with the adjusting plate, a second limiting plate is fixedly connected to the end portion of the connecting frame, and the connecting threaded pin is in threaded connection with the connecting frame.
8. The gas pipe settlement detecting and adjusting device according to claim 5, wherein a lower end of the connection frame is connected to the first support plate through a height adjusting unit.
9. The gas pipeline settlement detecting and adjusting device of claim 8, wherein the height adjusting unit comprises:
the outer sleeve is fixedly connected with the connecting frame;
the second threaded rod is fixedly connected with the first supporting plate, the outer sleeve is sleeved on the outer side of the second threaded rod, and a second knob is connected to the outer side of the second threaded rod in a threaded mode;
the end parts of the connecting outer rods are fixedly connected to the connecting frame;
the utility model discloses a pole, including pole, a plurality of pole in the connection, it is a plurality of the equal fixed connection of tip in the connection is on first backup pad, connect the outer pole cover and establish the outside in the pole in the connection, be provided with the second spread groove in connecting the outer pole, the tip fixedly connected with third connecting plate of pole in the connection, the side of third connecting plate is connected with the second spread groove through the second spring that is used for providing elasticity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210435814.2A CN114754734B (en) | 2022-04-24 | 2022-04-24 | Gas pipeline subsides and detects adjusting device |
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| CN202210435814.2A CN114754734B (en) | 2022-04-24 | 2022-04-24 | Gas pipeline subsides and detects adjusting device |
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| CN114754734B (en) | 2024-03-22 |
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